Article with visual effects

Patent metadata

Field	Value
Publication number	US-2022010098-A1
Application number	US-202117487063-A
Country	US
Kind code	A1
Filing date	Sep 28, 2021
Priority date	Jan 18, 2016
Publication date	Jan 13, 2022
Grant date	—

Abstract

A blow molded article, a method of making a blow molded article and a method of making a preform each having at least one layer comprising a thermoplastic resin and between 0.1% and 20% of an additive having a viscosity of greater than 1,000,000 cst. There is a refractive index difference of at least 0.04 between the additive and the thermoplastic resin. The high viscosity of the additive ensures even distribution of the additive within the thermoplastic resin in discrete domains, while additionally providing for a complex end look balancing opacity, gloss and depth.

First claim

What is claimed is:

1 . An injection stretched blow molded bottle with an improved visual effect comprising a neck and a body wherein the body comprises at least one layer comprising:
a. more than 50 wt. % of a first thermoplastic resin selected from the group consisting of polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), polyethylene naphthalate (PEN), post-consumer recycled polyethylene terephthalate (PCRPET), and combinations thereof; b. between about 0.1 wt. % and about 20 wt. % of a second thermoplastic material comprising a viscosity of from about 2,500,000 to about 50,000,000 cst; wherein the second thermoplastic material is immiscible or partially miscible with the first thermoplastic material; c. between about 10 to about 1000 discrete domains of the second thermoplastic material per 1000 μm3 of the at least one layer, wherein the discrete domains are dispersed throughout the at least one layer; wherein the domains comprise a length, a width, and a thickness and wherein the domains are considerably longer than they are thick and/or wide; wherein there is a refractive index difference of at least about 0.04 between the additive and the thermoplastic resin; wherein the body further comprises a high gloss outer surface.

2 . An injection stretch blow molded bottle as in claim 1 , wherein the thermoplastic resin is PET.

3 . An injection stretch blow molded bottle as in claim 1 , wherein the body consists of one layer.

4 . An injection stretch blow molded bottle as in claim 1 , wherein the neck comprises at least one layer comprising:
a. the first thermoplastic resin; b. between about 0.1 wt. % and about 20 wt. % of the second thermoplastic resin; c. discrete domains of the second thermoplastic resin, wherein the discrete domains are dispersed throughout the at least one layer; wherein the domains comprise an aspect ratio.

5 . An injection stretch blow molded bottle as in claim 3 , wherein the aspect ratio of the domains in the neck are considerably lower than the aspect ratio of the domains in the body.

6 . An injection stretch blow molded bottle as in claim 3 , wherein at least about 50 wt. % of the discrete domains in the neck comprise an aspect ratio of between about 0.02 to about 0.8.

7 . An injection stretch blow molded bottle as in claim 1 , wherein the body consists of one layer.

8 . An injection stretch blow molded bottle as claimed in claim 1 , wherein at least about 50 wt. % of the domains in the body comprise an aspect ratio of greater than 0.

9 . An injection stretch blow molded bottle as claimed in claim 1 , wherein at least about 50 wt. % of the discrete domains in the body comprise an aspect ratio of between about 0.4 to about 0.9.

10 . An injection stretch blow molded bottle as in claim 1 , wherein the thermoplastic resin is PET.

11 . An injection stretch blow molded bottle as in claim 1 , wherein the bottle comprises an exterior and the exterior is glossy.

12 . An injection stretched blow molded bottle with an improved visual effect comprising a neck and a body wherein the body comprises at least one layer comprising:
a. more than 50 wt. % of a first thermoplastic resin selected from the group consisting of polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), polyethylene naphthalate (PEN), post-consumer recycled polyethylene terephthalate (PCRPET), and combinations thereof; b. between about 0.1 wt. % and about 20 wt. % of a second thermoplastic resin comprising:
i. monomers derived from non-renewable resources; and
ii. a viscosity of from about 2,500,000 to about 50,000,000 cst;
c. between about 10 to about 1000 discrete domains of the additive per 1000 μm3 of the at least one layer, wherein the discrete domains are dispersed throughout the at least one layer; wherein the domains comprise a length, a width, and a thickness and wherein the domains are considerably longer than they are thick and/or wide;
wherein there is a refractive index difference of at least about 0.04 between the second thermoplastic resin and the thermoplastic resin;
d. wherein the body further comprises a high gloss outer surface.

13 . The injection stretched blow molded bottle of claim 12 , wherein the non-renewable resource comprises a post-consumer recycled material.

14 . The injection stretched blow molded bottle of claim 12 , wherein the non-renewable resource comprises bio-derived monomers.

15 . The injection stretched blow molded bottle of claim 12 , wherein the second thermoplastic resin is immiscible or partially miscible with the first thermoplastic material.

16 . An injection stretch blow molded bottle as in claim 12 , wherein the neck comprises at least one layer comprising:
a. the first thermoplastic resin; b. between about 0.1 wt. % and about 20 wt. % of the second thermoplastic resin; c. discrete domains of the second thermoplastic resin, wherein the discrete domains are dispersed throughout the at least one layer; wherein the domains comprise an aspect ratio.

17 . An injection stretch blow molded bottle as in claim 12 , wherein the bottle comprises an exterior and the exterior is glossy.

18 . An injection stretch blow molded bottle as in claim 12 , wherein the body consists of one layer.

Assignees

• Procter & Gamble

Inventors

• Agerton Mark Lewis
• Mamak Marc Andrew
• Mcdaniel John Andrew

Classifications

• B29C49/0411

  Means for defining the wall or layer thickness · CPC title

• B29C49/0005 Primary

  characterised by the material · CPC title

• B29K2105/0094

  having particular viscosity · CPC title

• C08K5/5419 Primary

  containing at least one Si—C bond · CPC title

• B29L2031/7158

  Bottles · CPC title